SMILES
Structure
Mass
—
Monoisotopic
—
Average
—
Adducts
| Ion | m/z | z |
|---|
Isotope envelope (neutral)
| Peak | m/z (mono) | Rel. abundance |
|---|
“M+1” / “M+2” here are the isotopologue peaks (¹³C, ³⁴S, ³⁷Cl …), normalized to the base peak = 100%. For the protonated/sodiated ion masses see the Adducts table above.
Precursor ppm error
Enter the measured ion m/z. The formula is for neutral M; the selected adduct supplies its mass and charge.
Enter an observed precursor m/z to calculate ppm error.